facility, ease, easiness, capability, feasibility, flexibility, pliancy, smoothness
, plain sailing, smooth sailing, straight sailing, mere child's play, holiday task, cinch, smooth water, fair wind, smooth royal road, clear coast, clear stage, tabula rasa, full play, disencumbrance, disentanglement, deoppilation, permission, simplicity, lack of complication, easy, facile, feasible, easily managed, easily accomplished, within reach, accessible, easy of access, for the million, open to, manageable, wieldy, towardly, tractable, submissive, yielding, ductile, suant, pliant, glib, slippery, smooth, on friction wheels, on velvet, unembarrassed, disburdened, unburdened, disencumbered, unencumbered, disembarrassed, exonerated, unloaded, unobstructed, untrammeled, unrestrained, at ease, light, at home with, quite at home, in one's element, in smooth water, skillful, accustomed, easily, readily, smoothly, swimmingly, on easy terms, single-handed, touch and go.
, plane, level, plate, platter, table, tablet, slab, flat, plane, even, flush, scutiform, discoid, level, flat as a pancake, flat as a fluke, flat as a flounder, flat as a board, flat as my hand.
, polish, gloss, lubricity, lubrication, down, velvet, velure, silk, satin, velveteen, velour, velours, velumen, glass, ice, slide, bowling green, asphalt, wood pavement, flagstone, flags, roller, steam roller, lawn roller, rolling pin, rolling mill, sand paper, emery paper, emery cloth, sander, flat iron, sad iron, burnisher, turpentine and beeswax, polish, shoe polish, lapidary, lapidary, lapidarian, smooth, polished, leiodermatous, slick, velutinous, even, level, plane, sleek, glossy, silken, silky, lanate, downy, velvety, glabrous, slippery, glassy, lubricous, oily, soft, unwrinkled, smooth as glass, smooth as ice, smooth as monumental alabaster, smooth as velvet, smooth as oil, slippery as an eel, woolly, smooth as silk, slippery as coonshit on a pump handle, slippery as a greased pig.
, unctuousness, lubrication, lubrification, anointment, oiling, synovia, glycerine, oil, lubricating oil, grease, saliva, lather, teflon, lubricated, lubricous.